USSD Handler Routing for Location-Based Services
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Solution Overview
Problem
Current location-based services for mobile terminals are cumbersome to use, especially in situations like driving, and struggle with distinguishing between numerous services offered, due to reliance on SMS or Web Dialog, which limits accuracy and availability.
Innovation Solution
Implementing a method that uses a GPS module and USSD codes to request location-based information, allowing for faster processing and secure transmission without requiring hardware or software changes on the terminal, with options for graphical or acoustic delivery and selection of service type.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If SMS dialog or Web Dialog is used for location-based services, then service availability is maintained, but ease of operation deteriorates due to cumbersome input requirements especially in driving situations
Solution Approach 1:
The patent changes the interaction parameter from manual text input (SMS/Web Dialog) to voice-based input. The voice recognition system allows users to issue location service requests verbally, transforming the operation mode from requiring precise manual input to allowing natural speech, thereby dramatically improving ease of operation especially for drivers
Solution Approach 2:
The patent replaces the mechanical input system (keyboard typing, menu navigation) with an acoustic input system (voice recognition). This substitution eliminates the need for manual dexterity and visual attention, allowing users to access location-based services through speech alone, thus resolving the contradiction between ease of operation and operational complexity
2Adaptability or versatility
If multiple location-based services are displayed as symbols, then service variety increases, but measurement precision deteriorates due to difficulty in distinguishing between services
Solution Approach 1:
The patent segments the service selection process into two stages: first, voice-based category selection (e.g., 'weather', 'traffic', 'restaurants'); second, specific service selection within the category. This segmentation allows comprehensive service variety to be presented while maintaining clear distinction through hierarchical organization and verbal confirmation at each level
Solution Approach 2:
The voice recognition system acts as an intermediary between the user and the service menu. Instead of directly displaying and selecting from numerous symbols, the voice interface translates user intent into service selections, providing natural language mediation that enhances both service variety accessibility and selection precision
3Productivity
If processing speed is increased for location-based services, then productivity improves, but reliability may deteriorate due to reduced authentication security
Solution Approach 1:
The system performs preliminary authentication of the user's voice biometrics before processing location service requests. By pre-establishing the user's voice print as an authentication credential, the system enables rapid subsequent service access without repeated authentication steps, thus improving processing speed while maintaining security through the initial voice verification
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simple, fast, and secure access to location-based services, improving user experience by reducing complexity and increasing the speed of information delivery, while supporting various service types and authentication methods.
Implementation Method 1
a place of location of a user is determined via a GPS module integrated into the terminal
Implementation Method 2
the mobile telephony network radiates an indicator signal to the mobile terminal
Implementation Method 3
the information request is dispatched as a USSD code (unstructured supplementary service data)
Data Source
AI summary
A system and method is provided for using location-based services (LBS) for mobile terminals of a mobile telephony network, a user dispatching an information request via the mobile terminal for information matched to the location of the user; the user dispatching the information request as an USSD code which belongs to a class of USSD codes specified in the mobile telephony network for location-based services (LBS-USSD), so that a USSD handler of network operator identifies the incoming USSD code for location-based services (LBS-USSD) and routes them on together with the address of the requesting user to an LSB further processing entity (WVI), by which the USSD code for location-based services (LBS-USSD) is interpreted with the aid of the parameterization, and the matching location-based information is made available for transmission to the user.